XML 105 R34.htm IDEA: XBRL DOCUMENT v2.4.0.6
Employee Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2012
Compensation and Retirement Disclosure [Abstract]  
Components of net periodic benefit cost
 
Pension Benefits
 
Other Postretirement Benefits
 
Three Months Ended
June 30,
 
Three Months Ended
June 30,
 
2012
 
2011
 
2012
 
2011
Service cost
$
24

 
$
24

 
$
1

 
$
1

Interest cost
61

 
66

 
3

 
5

Expected return on plan assets
(78
)
 
(75
)
 
(3
)
 
(4
)
Amortization of prior service credit
(3
)
 
(3
)
 
(1
)
 
—

Amortization of actuarial loss
66

 
42

 
—

 
—

Curtailment gain due to plan freeze
(11
)
 
—

 
(1
)
 
—

Net periodic benefit cost
$
59

 
$
54

 
$
(1
)
 
$
2


 
Pension Benefits
 
Other Postretirement Benefits
 
Six Months Ended
June 30,
 
Six Months Ended
June 30,
 
2012
 
2011
 
2012
 
2011
Service cost
$
50

 
$
52

 
$
2

 
$
2

Interest cost
124

 
130

 
8

 
10

Expected return on plan assets
(156
)
 
(149
)
 
(7
)
 
(7
)
Amortization of prior service credit
(5
)
 
(5
)
 
(1
)
 
—

Amortization of actuarial loss
119

 
79

 
—

 
—

Curtailment gain due to plan freeze
(11
)
 
—

 
(1
)
 
—

Net periodic benefit cost
$
121

 
$
107

 
$
1

 
$
5